arch/arm64/boot/dts/freescale/imx8mp-nitrogen-som.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-nitrogen-som.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-nitrogen-som.dtsi
Extension
.dtsi
Size
9994 bytes
Lines
410
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright 2020 Boundary Devices
 * Copyright 2025 Collabora Ltd.
 */

#include "imx8mp.dtsi"

/ {
	model = "Boundary Devices Nitrogen8M Plus Som";
	compatible = "boundary,imx8mp-nitrogen-som", "fsl,imx8mp";

	rfkill-bt {
		compatible = "rfkill-gpio";
		label = "rfkill-bluetooth";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_rfkill_bt>;
		radio-type = "bluetooth";
		shutdown-gpios = <&gpio3 9 GPIO_ACTIVE_LOW>;
	};

	rfkill-wlan {
		compatible = "rfkill-gpio";
		label = "rfkill-wlan";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_rfkill_wlan>;
		radio-type = "wlan";
		shutdown-gpios = <&gpio2 19 GPIO_ACTIVE_LOW>;
	};
};

&A53_0 {
	cpu-supply = <&buck2>;
};

&A53_1 {
	cpu-supply = <&buck2>;
};

&A53_2 {
	cpu-supply = <&buck2>;
};

&A53_3 {
	cpu-supply = <&buck2>;
};

&eqos {
	phy-handle = <&ethphy0>;
	phy-mode = "rgmii-id";
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_eqos>;
	status = "okay";

	mdio {
		compatible = "snps,dwmac-mdio";
		#address-cells = <1>;
		#size-cells = <0>;

		ethphy0: ethernet-phy@4 {
			compatible = "ethernet-phy-ieee802.3-c22";
			reg = <4>;
			eee-broken-1000t;
		};
	};
};

&i2c1 {
	clock-frequency = <400000>;
	pinctrl-names = "default", "gpio";

Annotation

Implementation Notes